Pile fabric.



J. W; SOHN.

PlLE FABRIC. APPLICATION min IAN-5.1918.

1 fiflfi g Patented Nov. 19, 1918.

I 2 SHEETS-SHEET 1- Arm/away.

, rain sirarns ATENT rare.

" JOHN soHN, or'ito'xeonouon, PENNSYLVANIA, ASSIGNOR TO A. r. BAKER &COM- A Y, OEMANAYUNK, PENNSYLVANIA, A COPAR'INERSHIP oomrosrn or ALFRED1 r; BAKER ANDALFRED r. BAKER, JR. I

PILE FABRIC.

To all whom it may concern:

Be it known that I, JOHN W. SoHN, a citi zen of the United States,residing at Roxborough, county of Philadelphia, and State ofPennsylvania, have-invented a new and --usefnl Improvement in- PileFabrics, of

which the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, which form a part of thisspecification. I

My invention relates to cut pile fabrics wherein two backing fabrics,connected by pile warps extending continuously through both fabricsandfrom one to the other, are cut, ina plane midway between and parallel toboth backing fabrics to form two halves, each constituting acompletefinished fabric having on one face a multitude of short upright out pileends.

The object of the invention is to so weave the 'fabric'th'at it willexhibit a smooth tufted face without objectionable ridges.

The fabric displays characteristics common to woven pile fabrics in thatit is composed of a top backing, a bottom backing, pile warp" threadswhich interlace with the weft or filler threads of both backings andalsoextend between the top and bottom fabrics, and binder warp threadseach of which extend through only a single backing. The fabric isconveniently woven on a double loom,-two filler shorts or weft picksbeing thrown simultaneously.

The main novel characteristic of my im- IHOVPfl weave is the presencetherein of pile warp threadsarranged in repeats or sets of nine. Thepile threads are so arranged and distributed that in extending betweenthe twc-backings they intersect between adjacent pairs of weft threadsor filling shots (two opposite weft threads of the respective backingsconstituting a pair). They are also so arranged and distributed that thenumber of such intersecting weft threads is the same between any twoadjacent pairs of weft threads. They are also so interwoven that theirdistribution and arrangement relative to any two adjacent weft threadsof the same backing is absolutely uniform: in other words, four pilethreads extend over, and one under, one weft thread and two pile threadsextend over, and two under, the next adjacent weft thread of the samebacking; the same arrangement of pile threads Patented Nov. are, tare.

Application filed January 5, 1918. Serial No. 210,409.

existing in the next two weft threads of the same backing.

Each pile thread extends successively over,

under and over three successive weft threads of one backing fabric,thence to the other backing and successively over, under and over threesuccessive weft threads thereof, and thence across to the first backingand so on. This is a well known weave, but in my specific adaptation andmodification thereof, I cause two of the pile threads of a repeat tointerweave in the same way with one combination of six successive weftthreads of a backing, another two pile threads of a repeat to interweavein the same way with another combination of six successive weft threads,and another two pilethreads Of a repeat to interweavein the sameway'with' a third combination of six successive weft threads, while theother three pile threads of a repeat interweave in the same way with theremaining fourth, fifth and sixth of the possible combinations ofsuccessive Weftthreads. Or, expressing the same arrangement in differentlanguage, two of the pile threads of a repeat interweaye with any sixweft threads in one order, ahother t wo pile threads intcrweare with thesam'efsix weft threads in another order, another two pile threadsinterwcave with the same six weft threads in still another order; whilethe remaining three pile threads interweave with the same six weft.threads in the three other possible orders.

The invention will be better understood by reference to the accompanyingdrawings. which illustrate a preferred embodiment and in which- Figure 1represents a series of longitudinal sections through the fabric, thesame being taken along the nine pile warp threads respectively. Fig. 2is a longitudinal section through the fabric showing the pile warpthreads of a repeat, two reference letters being applied to each ofthree pile threads shown to indicate that two threads are interwoven inthe same way with the same combination of six successive weft threads;the ground warp being omitted.

Fig. 3 is a plan view of the top backing of Fig. 2. the bottom backingbeing omitted.

The space between the threads relatively to the '-=ize of the threads isgreatly exaggerated in order that the construction may be more readilyobserved.

Eight successive weft threads of each backing are shown, a to hinclusive representing the weft threads of one backing and i to 39inclusive representing the weft threads of the other backing. a and imay be said to constitute one pair of weft threads, Z) and j anotherpair, and so on. The nine pile warp threads of a repeat are indicated bythe reference letters 1 to 9 inclusive.

It will be observed, taking any six successive pairs of weft threads,that pile threads 1 and 6 are interwoven together therewith in one way,pile thread 2 is interwoven therewith iii a second way, pile threads 3and 8 are interwoveh together therewith in a third way, pile thread 4 isinterwoven therewith in a' fourth way, pile threads 5 and 9 areinterwoven together therewith 'in. a fifth way, and that pile thread 7is interwoven therewith in the only remaining way possible.

By reason of this arrangement it will be observed that any part of thefabric comprising two successive pairs of weft threads (say a, i and b,is a counterpart of any other part of t e fabric comprising twosuccessive pairs 0 weft threads. Thus, to the right of the pair of weftthreads .1 andz' three pile threads intersect, two (1 and 6) passingfrom top to bottom and one (7) passing from bottom to top; to the rightof the next pair of weft threads 6 and j three pile threads intersect,two 3 and 8) passing from bottom to top and one (4) passing from top tobottom. Four pile threads (1, 6 5, 9) pass over, and one (4) under, wefta, and two pile threads (4 and 7) pass over, and two (5 and 9) under,weft I); while two pile threads pass over, and two under, weft z, findfour pile threads pass over, and one er, weft j. This same arrangementand grouping of pile threads characterizes any part of the fabriccomprising two successive pairs of weft threads.

It is customary to operate, as pairs, any two pile threads whichinterweave with corresponding weft threads of the two backings in thesame way. In my improved fabriceach pile thread 1 and 6 operates in apair vith pile thread 7, each pile thread 5 and 9 operates in a pairwith pile thread 2,

and each pile thread 3 and 8 operates in a pair with pile thread 4. Itwill therefore be understood that notwithstanding the relatively largenumber of pile threads in a repeat, no additionalharness frames arerequired beyond those required .in the manufacture of pile fabrics ofapparently less complicated weaves.

In Fig. 3, I have shown, three pairs of ground warps (1*, sand t) in thebacking therein shown, it being understood that corresponding groundwarps are used in the other backing. Other arrangements of ground warpsmay be used, it being understood that my invention is not limited to anyparticular arrangement of ground waIrI s. a I

aving now fully described my invention, what I claim and desire toprotect by Letters Patent is: y a

A b ank adapted to be cut or split to form two pile fabrics and composedof two backing fabrics comprising weft threads and pile warp threads allinterwoven with the weft threads of both backings by extending over,under and over successive wefts .of each backing and thence extendingacross to, and similarly interwoven with, the other backing, the pilethreads being arranged in sets of nine, the pile threads of a setengaging the same combination of weft threads. in six different ways,three of said nine pile threads interweaving with any six weft threadsin the same way as three other of said pile threads respectively, twosimilarly interweaving pile threads being interwoven with any sixsuccessive weft threads of one backing in the same way that one of theseparately interweaving pile threads interweave with the correspondingweft t reads of the other backing so that (between each two adjacentpairs of weft, threads) two similarly interweaving pile threads extendbetween the backings and intersect asingle pile threadextending in theopposite directhreads interweaving with any six weft threads in twodifferent Ways extending over, and one separately interweaving pilethread extending under, alternate weft threads of either backing, andtwo pile threads extending over, and two similarly interweaving pile.threads extending under, the remaining weft threads of eachbacking. Intestimony of which invention, I have hereunto set my hand, atPhiladelphia, Pa, on this 26th day of December, 1917-.

JUHN W. SOHN. Witnesses:

, MARGARETHA Voe'r,

GARRH} EARNSHAW.

Copies of this patent may be obtained for five cents ea ch, byaddressing the Uommissionerot Patents, Weshingtcmmfl.

